6634A SERIES TEMPERATURE STABILIZED RESISTANCE STANDARDS
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- Normal Ohms Resistance Range: 0.1 Ω to 100 MΩ in Single Decade Increments
- NEW LOW Ohms Resistance Range provides 1 mΩ to 0.1 Ω in Decade Steps
- Temperature Coefficient < ± 0.005 ppm/°C
- Stabilities Low as < 2 ppm/year
- Thermometry Resistance Values Available
- 4-Wire Low Thermal Gold-Plated Connections
- Eliminates Oil Bath Requirements
- Internal PRT Stability: ±0.05 °C / Year
- Custom Internal Temperature Set Points
- Ambient Temperature Range: 23 °C ± 5 °C
- Low Thermal EMF’s – Shielded Chamber
- Guarded Resistance Element Chamber
- Custom Values / Models Available
- CE Marked with World-Wide Voltage & Frequencies
- Top End Range Values up to 100 TΩ with Guildline Model 6636
GUILDLINE INSTRUMENTS 6634A SERIES is a modular series of Resistance Standards that can be rack mountable or simply set on a bench. The 6634A Series provides a set of up to 10 precision resistance standards enclosed in a temperature controlled and EMI protected chamber.
THE 6634A SERIES IS AN EXCELLENT SOLUTION AS A WORKING STANDARD FOR AUTOMATED RESISTANCE MEASUREMENT SYSTEMS OR AS A STAND-ALONE LABBORATORY PRIMARY RESISTANCE STANDARD!
For the Normal Ohms Configurations, there ar 10 standard resistance values available convering the range of 0.1 Ω to 100 MΩ. Each resistance element is isolated and has 4-terminal connections on the rear panel. The resistance elements are maintained at approximately 30 °C in a temperature stabilized ehmber. Each element is built with Guildline’s “true” mlti-element design.
Optional higher chamber temperature set points of 35 °C and 40 °C are avaliable on request. Temperature monitoring is provided by a precision PRT sensor installed in the chamber with 4 terminal connectors provided on the front panel.
The Model 6634A is excellent as a Working Standard for Automated Resistance Measurement Systems or as Referrence Standards at the Primary level. Special resistance values are available in te range of 0.001 Ω to 100 MΩ.
Standard model variations are available wigh 5,6,7,8,9 or 10 resistance elements installed. All models purchased with less than 10 resistance standards can be expanded at any time via a factory upgrade. Special resistance values can also be ordered.
A New LOW Ohms Configuration is now available for values below 0.1 Ω. This Series has the same precision temperature stability as the Normal Ohms Configuration, but is limited to a maximum of 3 Resistance Elements. Thes is due to the large size of the low ohmic elements. The Resistance Range of the Low Ohms models is from 1 mΩ to 100 mΩ.
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